Last updated: June 2026

Overview

Cookie Monster is a Chrome browser extension that automatically scans and removes third-party tracking cookies to protect your privacy while browsing.

What we access

Cookie Monster requests the following browser permissions:

cookies — to read, classify, and delete tracking cookies in your browser

webRequest — to track which domains a webpage contacts so we can identify associated cookies

notifications — to notify you when trackers are automatically deleted

tabs — to detect when you navigate to a new page so cookies can be scanned

storage — to save your privacy settings and deletion history locally on your device

host_permissions (all URLs) — to monitor cookies across all websites you visit

What stays on your device

Everything. All scanning, classification, and deletion happens entirely within your browser. No cookie data, no browsing history, no personal information, and no usage data is ever transmitted to any external server or third party. Cookie Monster makes no outbound network requests except to load fonts from Google Fonts for the user interface.

What is stored locally

The following data is saved in chrome.storage.local on your device only:

Your privacy preferences and settings